Home / 57,228.31-78,974.67-31,734.65

Finding the Fourth Proportional to 57,228.31, 78,974.67 and 31,734.65

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Solution

The fourth proportional to 57,228.31, 78,974.67 and 31,734.65 is: 43,793.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,228.31 : 78,974.67 = 31,734.65 : x
  2. Step 2: Convert to fraction form
    57,228.31/78,974.67 = 31,734.65/x
  3. Step 3: Cross multiply
    57,228.31x = 78,974.67 × 31,734.65
  4. Step 4: Simplify right side
    57,228.31x = 2,506,233,511.32
  5. Step 5: Solve for x
    x = 2,506,233,511.32/57,228.31
  6. Step 6: Final answer
    x = 43,793.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.